Stock markets are volatile, as recent events have shown.
But should you be worried about the falls in share prices?
Frankly, markets are always volatile, and seasoned investors know to ride out any storms.
Indeed, some see the events of the past few weeks as a buying opportunity, based on the old saw that when markets panic, it's time to buy
But that doesn't mean you should rush to open an Isa and stuff it with growth stocks.
You should never make investment decisions based on short-term events.
If you haven't used up your £15,000 tax-free Isa allowance yet this year, there's no rush: you have until April 5 to do so.
If you have already used your allowance and are worried that your investment is shrinking daily then you need to think about your attitude to savings.
If you can't cope with the notion that your nest-egg could shrink, then you should keep it in safer places, even if it means lower returns in a deposit account.
If your pension pot is stuffed with aggressive growth opportunities, it may have taken a serious dent.
But that is unlikely.
In short, you shouldn't panic. It's a wise idea to check investments regularly to ensure they are on target for your hoped-for returns. If they aren't, you should adjust them accordingly.